Salvation Technologies?

World on Fire ◽  
2021 ◽  
pp. 83-108
Author(s):  
Mark Rowlands
Keyword(s):  
Climate Change ◽  
Solar Wind ◽  
Renewable Energy ◽  
Carbon Capture ◽  
Fossil Fuels ◽  
Nuclear Fission ◽  
Energy Sources ◽  
Wave Power ◽  
Carbon Capture And Sequestration ◽  
Fossil Energy

Available fossil energy sources are dubiously compatible with the goal of arresting climate change. Carbon capture and sequestration technologies currently do not work on an industrial scale, and even if they could be made to work, they will reduce the energy returned on energy invested (EROI) of fossil fuels to below acceptable levels. The EROI of nuclear fission is disputed, but most peer-reviewed work places it in the 5–14 range, making it of questionable utility. Nuclear fusion, if it works, will not be available in time. Some renewable sources—notably, various biofuels—have unacceptably low EROIs. The remaining forms of renewable energy—solar, wind, hydropower, and wave power—sport EROIs that are, at best, on the cusp of viability. There is reasonable hope for improvement in these technologies because they are, at present, immature. In the meantime, it would be ideal if we could find a way to give them an edge.

The Energy Future

2018 ◽  
Vol 9 (1) ◽  
pp. 153-174 ◽  
Author(s):  
John Newman ◽  
Christopher A. Bonino ◽  
James A. Trainham
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Carbon Capture ◽  
Fossil Fuels ◽  
Clean Energy ◽  
The United States ◽  
Standard Of Living ◽  
Carbon Capture And Sequestration ◽  
Energy Options ◽  
The Cost

The foreseeable energy future will be driven by economics of known technologies and the desire to reduce CO2 emissions to the atmosphere. Renewable energy options are compared with each other and with the use of fossil fuels with carbon capture and sequestration (CCS). Economic analysis is used to determine the best of several alternatives. One can disagree on the detailed costs, including externalities such as climate change and air and water pollution. But the differences in capital and operating costs between known technologies are so significant that one can draw clear conclusions. Results show that renewable energy cannot compete with fossil fuels on a cost basis alone because energy is intrinsic to the molecule, except for hydroelectricity. However, fossil fuels are implicated in climate change. Using renewable energy exclusively, including transportation and electricity needs, could reduce the standard of living in the United States by 43% to 62%, which would correspond to the level in about 1970. If capture and sequester of CO2 are implemented, the cost of using fossil fuels will increase, but they beat renewable energy handily as an economic way to produce clean energy.

scholarly journals The use of renewable resources is an opportunity and an obligation

2014 ◽  
pp. 13-17
Author(s):  
Zoltán Balla
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Renewable Resources ◽  
Energy Production ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Rational Utilization ◽  
Security Of Supply ◽  
Harmful Substances

The renewable energy sources could be used in energy production, while no or only very slightly emit harmful substances to the environment. The solar, wind, hydropower, biomass and heat rational utilization of land contributes to greenhouse gas emissions.Renewable energy sources also reduces the dependence on fossil fuels, thus contributing to increase security of supply. The creation of local jobs to strengthen the area's population retaining ability.

Research of Residents Cognitive and Attitude towards Renewable Energy

2013 ◽  
Vol 291-294 ◽  
pp. 1332-1335
Author(s):  
Yin Tsuo Huang
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Security ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Energy Sources ◽  
Local Energy ◽  
Price Rise ◽  
Community Residents ◽  
Huge Impact

Recent years, the price rise of energy resource , the climate change caused by the abuse of fossil fuels, the Tokyo Protocols which limited the ejection of greenhouse gas and many other things have caused unprecedented huge impact and threat. Taiwan , which relies 98% on importing energy sources, has very little local energy source , very low reservation of petrol and very small proportion of self-running coal and gas facilities, therefore the energy security condition has become quite severe. This essay mainly discusses the cognition and attitude of community residents towards renewable energy in Taiwan, analyzes people’s different cognition and attitude, elaborates the correlation between cognition and attitude towards renewable energy and in the end offer some suggestions to the related professionals and researchers.

scholarly journals Trascendencia de la generación distribuida (GD) y el uso de las redes inteligentes.

2018 ◽  
Vol 3 (2) ◽  
pp. 13
Author(s):  
José Daniel Sánchez de la Cruz ◽  
Ney Raúl Balderramo Vélez ◽  
Yolanda Llosas Albuerne ◽  
Gabriel Enrique Pico Mera
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Smart Grids ◽  
Fossil Fuels ◽  
Energy Sources ◽  
Sustainable Cities ◽  
Fossil Energy ◽  
The Future ◽  
Index Terms ◽  
Remote Communications

  El objetivo de este artículo es presentar los impactos que están causando los combustibles fósiles al ambiente, e incorporar las nuevas fuentes de energías renovables y optar por la generación distribuida GD, ya que el exorbitante crecimiento demográfico ha incitado a generar más energía eléctrica. De igual manera integrar ciertas tecnologías como las redes inteligentes o Smart grids, permitiendo las comunicaciones remotas bidireccionales y disponibles continuamente para la recopilación de información. Finalmente dar el gran paso hacia las ciudades inteligentes, sostenibles, y el internet del futuro.   Palabras claves— ciudades del futuro, energías renovables, fuentes de energía fósiles, generación distribuida (GD), internet del futuro, redes inteligentes.   Abstract   The aim of this paper is to present the impacts that fossil fuels are causing to the environment, add new sources of renewable energy and distributed generation choose GD, since excessive population growth has led to generate more electricity. Similarly integrate certain technologies such as smart grid and Smart grids, enabling remote communications two-way and available continuously for the collection of information. Finally give the big step towards smart, sustainable cities, and the internet of the future.   Index Terms— cities of the future, renewable energy, fossil energy sources, distributed generation (GD), internet of the future, smart grids. 

scholarly journals TENDENCY OF GLOBAL CAPACITY DEVELOPMENT OF RENEWABLE ENERGY SOURCES IN THE WORLD IN THE LAST TEN YEARS

2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Isak Karabegović
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Production ◽  
Fossil Fuels ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Low Carbon ◽  
Small Hydropower ◽  
The World

It is well-known that, in the past decades, the burning of fossil fuels was identified as the major cause of climate change. Climate change mitigation is becoming a central concern of global society. Limiting global warming to below 2 °C above the temperature of the pre-industrial period is the key to preserving global ecosystems and providing a secure basis for human activities, as well as reducing excessive environmental change. The ambitions increased at an accelerated pace with a dramatic expansion of net zero-emission targets. Increasing pressure from citizens and society has forced countries to intensify their climate plans, while the private sector has bought a record amount of renewable energy. An energy system based on fossil fuels must be replaced by renewable energy with low carbon emissions with improved energy efficiency. That applies to all consumers of fossil energy: cities, villages, building sectors, industry, transport, agriculture, and forestry. The paper explores and presents the strategy of energy development of renewable energy sources in the world. The application of new technologies that have led to developing renewable energy sources is presented in detail: wind energy, solar energy, small hydropower plants, biomass, and their increase in the total share of energy production, i.e., reduced fossil fuel use in energy production. Investments in new technologies used in renewable energy sources have led to increases in employment worldwide. Analysis of the trend of increased energy production from RES (Renewable Energy Sources) with investment plans, the employment rate for each energy source, and the development of renewable energy sources in the coming period are provided.

Impact of renewable energy deployment on climate change in Nigeria

2015 ◽  
Vol 26 (3) ◽  
pp. 125-134
Author(s):  
Udochukwu B. Akuru ◽  
Ogbonnaya I. Okoro ◽  
Edward Chikuni
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Greenhouse Gas ◽  
Environmental Effects ◽  
Fossil Fuels ◽  
Ghg Emissions ◽  
Environmental Benefits ◽  
Energy Sources ◽  
Industrial Growth ◽  
Impacts Of Climate Change

It is well known fact that the rate of industrial growth of any country is a function of the amount of energy available in that country and the extent to which this energy is utilized. The burning of fossil fuels to generate energy is a dirty process. Greenhouse gas (GHG) emissions result when fossil fuels are produced and consumed and these emissions contribute to climate change. Nigeria as a country is highly vulnerable to the impacts of climate change because its economy is mainly dependent on income generated from the production, processing, export and/or consumption of fossil fuels and its associated energy-intensive products. Hence, it is on this premise that this paper is researched to review the energy sources being used in Nigeria and investigate its impact to climate change. Findings reveal Nigeria’s over-dependence on fossil-generated energy with associated adverse environmental effects, among other things. Recommendations for the integration of renewable energy into Nigeria’s energy mix, beyond other measures, have been offered, especially with reference to the salient environmental benefits that accrue to it.

scholarly journals Risks of switching to renewable energy sources

2021 ◽  
Vol 101 ◽  
pp. 01010
Author(s):  
E.S. Romanova ◽  
A.A. Masalkova
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Energy Transition ◽  
Energy Sources ◽  
International Treaties ◽  
Carbon Dioxide Co2

This research work is devoted to the issue of studying the key risks of switching to renewable energy sources. The relevance of the topic of work is determined by the fact that, according to climatologists [5], climate change, which has a negative impact on the environment, is caused by the emission of greenhouse gases such as carbon dioxide (CO2). For this reason, measures to prevent or reduce greenhouse gas emissions are at the heart of the energy transition. International treaties such as the Kyoto Protocol and the Paris Agreement lay the foundations for global action to combat climate change and implement a fourth energy transition. The energy transition is characterized by a number of incentives and barriers. Despite the fact that there are many scenarios for the development of the global energy sector by 2050, the expected transformations of the energy market lead to a significant redistribution of the ratio of the shares of hydrocarbon sources and renewable energy sources [16]. The trend towards fossil fuels is on the rise. These transformations in the market are determined not only by the climate agenda, but also by the concept of sustainable economic development.

scholarly journals Renewable Energy Technologies as “Saving Graces” for Pacific Island Nations Fighting Climate Change

2019 ◽  
Vol 25 (3) ◽  
pp. 117-125
Author(s):  
Rena Lovo ◽  
Eric Gilder ◽  
Ora Renagi ◽  
Dapsy Olatona
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Sources ◽  
Successful Implementation ◽  
Pacific Island ◽  
Sustainable Renewable Energy ◽  
Pacific Island Nations

Abstract In this study, the authors carried out a detailed analysis of the technologies required for successful implementation of a sustainable renewable energy household power supply in Papua New Guinea or PNG (PNG is a Pacific Island nation, North of Australia) to free the country from fossil fuel dependency. The role of renewable energy sources in the recent PNG National Energy Policy covering 2018 to 2050 (unveiled at the 2018 March Energy Summit in Port Moresby by the PNG Minister of Energy) was also analysed. From the outcome of our recently concluded SERI 2018 Renewable Energy conference, we assembled into a single hypothetical ‘energy basket’ all the varied renewable ‘green’ energy sources within PNG (as estimated by our energy research groups). This paper estimates that there is sufficient renewable energy in PNG and advocates that these available green energy sources should be tapped, for they can go a long way in the quest for climate change mitigation. This research paper will articulate that shifting PNG’s and other Pacific Island nations’ energy reliance from fossil fuels and other non-renewable sources to renewable green and environmentally sustainable sources is not only achievable, but feasible within a reasonable time.

scholarly journals Vertical force requirement for stump lifting

2013 ◽  
Vol 59 (No. 7) ◽  
pp. 267-271 ◽  
Author(s):  
I. Czupy ◽  
E. Horváth-Szováti
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Vertical Force ◽  
Fossil Energy ◽  
Soil Preparation ◽  
The Right ◽  
The Cost ◽  
Stump Diameter

In harvest areas the soil preparation is occasionally necessary before reforestation including the removal, collection and transportation of stumps from the soil. Issues related to climate change and the shortage of fossil energy sources call for an increased rate of renewable energy sources. Using the stumps removed from the soil as fuel is a significant resource for biomass. For lifting a stump together with its roots a grab mounted on a shovel is generally used. To rationalise this operation, analyses of stump lifting time have been carried out. We tested a machine mounting one grab for stump lifting on three tree types (Scots pine, robinia and poplar) and found functions correlating stump extraction force and stump diameter, which can be used in order to choose the right machine and determine the cost of the operation.  

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